Tepid
Part of speech: adjective
Definition: Lukewarm. Uninterested; exhibiting little passion or eagerness.
Half-hearted
Part of speech: adjective
Definition: Not sincere; lacking full energy, effort, commitment, or resolve.
Tepid as an adjective is lukewarm. while Half-hearted as an adjective is not sincere; lacking full energy, effort, commitment, or resolve.
Part of speech: adjective
Definition: Lukewarm. Uninterested; exhibiting little passion or eagerness.
Part of speech: adjective
Definition: Not sincere; lacking full energy, effort, commitment, or resolve.
We hope you now know whether to use Tepid or Half-hearted in your sentence.